Graphene in proximity to magnetic insulating LaMnO3

Guanghui Cheng, Laiming Wei, Long Cheng, Haixing Liang, Xiaoqiang Zhang, Hui Li, Guolin Yu, Changgan Zeng

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Proximity to functional substrates may enhance the coupling between the quantum degrees of freedom and thus develop nontrivial quantum effects in graphene. Here, we demonstrate the successful fabrication of graphene in proximity to atomically flat magnetic insulating LaMnO3 films. The insulating nature of the LaMnO3 films not only ensures the electronic transport only occur in the graphene layers but also allow them to serve as dielectric layers for gating. Transport measurements reveal anomalous behaviors, including asymmetrical longitudinal magnetoresistivity and nonlinear Hall effect. This work may pave a way toward the realization of intriguing quantum phases in graphene.

Original languageEnglish
Article number133111
JournalApplied Physics Letters
Volume105
Issue number13
DOIs
Publication statusPublished - 2014 Sep 29
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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